Jumping-rope.



No. 633,590. Patented Sept. 26, I899. F. B. HINKSON &. W. I. CRAWFORD.

JUMPING ROPE.

[Application filed Dec. 2, 1897.

{No Model.)

W M M Neznmp To-u'ma, WASNINGYON u c UNITED STATES PATENT Gretna FRANKB. I-IINKSON AND \VILLIAM I. CRAVFORD, OF NElV CASTLE, PENNSYLVANIA.

JUMPING-ROPE.

SPECIFICATION forming part Of Letters Patent N0. 633,590, datedSeptember 26, 1899.

Application filed December 2,1397. Serial No. 660,495. (No model.)

To all whom, it may concern:

Be it known that we, FRANK B. HINKSON and WILLIAM I. CRAWFORD, citizensof the United States, residing at New Castle, in the county of Lawrenceand State of Pennsylvania, have invented a new and useful Jumping-Rope,of which the following is a specification.

Our invention relates to jumping-ropes for the use of children, and hasfor its object to furnish a device of this class which shall be simple,cheap, strong, and durable.

With this object in View our invention consists in a jumping-ropecomprising two coils of wire, one within the other, having suitable endhandles attached thereto.

Our invention further consists in a jumping-rope comprising two coils ofwire, one inclosed within the other, the coils being twisted in oppositedirections and suitable handles secured at each end.

Our invention further consists in a jumping-rope comprising perforatedhandles, a coil of wire, the ends of which are inserted in said handles,and a barbed bolt secured in the ends of the coils, which hold them inthe openings in the handles and permit them to swivel or turn therein.

Our invention further consists in a jumping-rope comprising perforatedhandles, two coils of wire, one within the other, the ends of which areinserted in the perforations in the handles, while a barbed bolt or pinin the open ends of the double coils holds them in the handles, whilepermitting them to swivel in the perforations thereof.

Our invention further consists in the improved construction,arrangement, and combination of parts hereinafter fully described andafterward specifically pointed out inthe appended claims.

In order to enable others skilled in the art to which our invention mostnearly appertains to make and use the same, we will now proceed todescribe its construction and operation, reference being had to theaccompanying drawings, forming part of this specification, in whichFigure 1 is a perspective View of a j umping-rope constructed inaccordance with our invention. Fig. 2 is a detail perspective view,

on an enlarged scale, of a section of the body of the j umping-rope.Fig. 8 is a detail sectional View of the same. Fig. at is a detailsectional view through one of the handles and one end of the bodysecured therein. Fig. 5 is a detail perspective View of the barbedsecuring bolt or pin. Fig. 6 is a detail view illustrating a barbed boltin the ends of the coils detached from the handle.

Like letters of reference mark the same parts wherever they occur in thedifferent figures of the drawings.

Referring to the drawings by letters, A indicates the main body of ourimproved jumping-rope, which consists of an outer coil B and an innercoil C, of Wire, either fiat or round, the former preferred. The coils Band C are turned in opposite directions, one being right-handed and theother left-handed, it being immaterial whether the right-hand orleft-hand one is inside or outside.

D D are handles of any ordinary shape to be attached to the ends of thebody A. These handles are centrally perforated, the bore E therein beingof two diameters, joined by a shoulder F about midway of the length ofthe handle.

G is a bolt or pin provided with a head H and barbs I.

J is a plug to close the outer end of the bore E of the handle.

To secure the ends of the bodyA in the handles, the bolt G is forcedinto the end of the interior coil 0. As the bolt G is forced into thecoil the backward-pointed barbs I will slip between the coiled wires Band O, which drop behind the barbs, and after the insertion of the boltthe ends of the barbs are bent down upon the outside of these wire coilsflush with the outer surface thereof.

In assembling the parts a bolt is secured in one end of the coils, theother end passed through one handle from the outer side and through theother handle from the inner side, and a bolt then secured in theprojecting end. WVhen the coils are in position in the handle, thecontact of the head H of the bolt with the shoulder F will prevent thembeing slipped or drawn through the smaller section of the bore E,whereby the pulling out of the body A will be rendered impossible, andits ends will be thus secured in position in the handle and permitted toswivel therein. The plug J will now be inserted to give a better finishto the outer end of the handle and prevent any tampering with the bolt.

From the foregoing it will be obvious that we have provided an extremelysimple and cheap construction of j umpingrope which will at the sametime be extremely durable and efficient for the purpose for which it isintended, our means for securing the ends thereof in the handles beingeasy and sure.

As hereinbefore stated, the coils B and C may be made of round or fiatWire, although we prefer the flat wire, and it is obvious that they mayalso be made of wire of any other crosssectional form, such as halffiat, elliptic, the.

While we have described efficient means for carrying out our invention,we do not wish to be understood as restricting ourselves to the exactdetails of construction shown and described, but hold that any slightchanges or variations such as might suggest themselves to the ordinarymechanic would properly fall within the limit and scope of our in-Vention.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent of the United States, is

1. In a jumping-rope, the combination with perforated handles, of a bodymade of coiled Wire, each end of which is inserted in the perforationsof said handles, and a barbed bolt secured in each end of the coil toprevent it from being drawn through said perforations, substantially asdescribed. 7

2. The combination with perforated handles, of a body consisting of twocoils of wire, one inclosed within the other, the ends of said bodybeing inserted in the perforations of said handles, and barbed boltsbeing secured in each end of the coils to retain them in saidperforations, substantially as described. 7

3. The herein-described jumping-rope,comprising handles provided withperforations of two different diameters joining each other at shouldersat about the mid-length of the handles, the body consisting of coiledwire, the ends of which are inserted in the smaller sections of theperforations of the handles, beyond the shoulders in said perforations,and the barbed and headed bolts secured in the ends of the coil of thebody with their heads in position to contact with the central shouldersin said perforations, substantially as described.

4. The combination with the perforated handles, of a body consisting ofan inner and outer coil of wire, one of said coils being righthanded andthe other left-handed, the ends of said body being inserted inperforations in the handles, of barbed bolts secured in each end of thecoils and provided at one end with suitable heads to retain them in saidperforations and a plug or stopper secured in the free end of saidperforations to limit the slidable movement of the handles on the coils,substantially as described.

5. In a jumping-rope, the combination with the handles, of a rope madeof wire, aheaded bolt in said handle, and provided withrearwardly-projectin g stuck-up barbs to hold and retain the ends ofsaid rope in the handles substantially as described.

FRANK B. HINKSON. WILLIAM I. CRAWVFORD.

Vitnesses:

HIRAM G. l\'[ILLER, CHAS. E. RIORDAN.

